Plaster-board.



J. R. WALSH.

PLASTER BDARD.

APPLICATION FILED Dec. I6, I9I4.

Patented 11111.11, 1916.

JAMES R. WALSH, oF JAcKsoNVILLEfFLoRIDA.

i PLAsTER-BOARD.

To all whom 'it may concern Be it known that I, JAMES R. WALSH, a

citizen of the United States, and a resident v of Jacksonville, in the county of Duval and vState of Florida, have invented a new and Improved Plaster-Board, of which the following is a full, clear, and-exact description. i

An object of the inventions to provide a plaster-board formed of folding panels hingedly connected, for folding into compact form, for transportation, and arranged to be extendedinto the same plane to be applied flat, where no eXtra stiffness is required, thus eliminating joints between the panels, and.. eliminating the work of pointing joints, and preventingusual joint marks or cracks on the finish plaster.

A further object of the invention is to provide a plaster-board of hinged sections,

arranged to-present accordion folds, and collapsible to a greater or less degree, to have a zig-zag form as may be required to present a total effective thickness in accordance with the thickness of the particular wall or partition, or collapsed-,to a degree to reinforce itself to suit the particular span of a ceiling, or the like. y l

A further object of the invention is to provide depressions at alternatelyopposite sides of the plaster-board to receive wall plaster,

or to accommodate reinforcing bars, gas pipes, electric conduits, or the like.

A further object of the invention is to provide a plaster-board adapted to be, readily cut up into special Vlengths -by the workman to suit his requirements.

Other purposes and advantages of the invention will appear from the specific description following.

`Reference is had to the accompanying drawings forming part of this specification,

in which similar characters of reference in-` dlcate correspondlng parts 1n all the vlews,

and in which:

Figure 1 is a sectional perspective view showing my improved folding plaster-board,

and showing one manner in which the board may be applied in flat form; Fig. 2 is a sectional perspective view' showing an improved plaster-board having its panels disposed in zig-zag form; Fig. 3 is a perspective view of a plaster-board with certain of the panels in the form of the folds in close relation, and other panels partially extend- Specification of- Letters Patent.

Application iled December 16, 1914. Serial No. 877,499.

Patented Jan.

ed; Fig. 4 is a fragmentary horizontal sectionof a solid plaster wall having my improved plaster-board incorporated therein in zig-zag form.

In carrying out my invention, a seriesl of separate panels, designated generally by the numeral l0, are provided, which may in practice have a width to constitute slats. The bodies 11 of the panels are formed of cgypsum, or like plaster-board material.

Over each face of the panel is applied a covering of laminated paper 12, of the character generally /employed 'on plaster-boards of ordinary form. The paper covering 12 extends across' the respective panels, uniting the same into a continuous sheet, and in a way to constitute hinge joints between the respective panels. The hinge connections constitute accordion joints, so that the panels may be folded into close relation, as indicated at the lower portion of Fig. 3, or a sheet`may be extended or collapsed to a greater or less degree, to assume a zig-zag form. To effect the accordion folding of the panels, the bodies 11 are formed with longitudinal recesses 13 at the longitudinal edges, there being one recess at each side edge of a panel, and the respective recesses of a panel being at opposite sides. The paper covering follows the recessed form of thel bodies 11, at the joints, so that at each joint va longitudinal groove 14 is produced, the

said grooves being alternately in opposite faces of the sheet. At the back -of eachrecess the material of thebody l1 and paper the joint. The result is that the panels constituting the plaster-board may assume accordion folds. When the folds are in close relation the board is convenient vfor handling and transportation, and may be sawed into a particular length to suit the requirements lof particular work.- Similarly, the

board may be applied in full 'size or infractional sheets to suit particular requirements.

The boards in flat form may be applied vertically or horizontally; I have shown in Fig. .L one application in flat form, the panels in this ligure running horizontally. The continuity of the paneled sheet or board eliminates joints, thereby eliminating the work of pointing joints, and preventing the usual joint marks or cracks in the finish plaster. To secure the panels, they may be bedded in cement, or may be nailed or se- 90 covering 10 extends without depression over 4' duits to be buried in the plaster, or the de- I cured by wire, according to the particular situation in which the ance, for instance, .with the thickness of the wall, or the stiffness required in'a particular situation, or to suit a given span. llt can be applied to beamed and other ceilings, and is particularly advantageous in the construe tion of vaulted ceilings. lt may be employe in' solid partitions, and collapsed to a degre accordance with the thickness of the Wall,

while at the same time the partially collapsed panels will present depressions alternately at opposite sides of the 'board to receive plaster, or gas pipes, or electricconpressions may receive reinforcement lelements where stieningbars are required for very high or thin partitions.` ll have shown the improved bar in Figs. 2 and 4 employedl partially collapsed into zig-zag form, thereby vpresenting depressions at alternately opposite sides, which is filled in with plaster 10 Y The depressions also provide for receiving-a pipe or conduit 20, or a stiffening element. In the zig-zag form the plasterboard may be nailed or wired in place, or may be bedded at the bottom in cementmortar. I employ cleats 16, one form of which is shown in Figs. 2l and 4. These cleats 16 comprlse a base member having upwardly 1 projecting vstuds 17 positioned against adjacent panels 10. The cleats maybe secured l by anysultable fastener 18, Asuc as a nail or screw.- j. l

Having'thus' described my invention, what secure by Letters Patent, is:

1. A plaster-board consisting of 'separate plaster-board panels, and a flexible covering at each side thereof hingedly connecting the panels, the said covering forming the only l connection'between thev panels, said panels havingl recesses extending 'longitudinally thereof at the joints at alternately opposite faces ofthe board,.jthe opposed recesses of adjacent` panels forming grooves andthere being f at -each joint an ungrooved surface opposite each groove, the said' panels `being 55 foldable flat zag form. A

2A. plaster-board.l formed ofv separate v against one anotherinto 'zigidealer plaster-board panels, and flexible material' hingedly 4joining the several panels at bothsides, .the said plaster panels havlng recesses 6@ Vat the joints at alternately opposite faces,

3. A plaster-board formed. of separate to giveV the desired -effective thickness plaster-board panels, andmeans hingedly joining the said panels'together, saidboard having at each of the joints, a longitudinal groove and a plain, ungrooved surface, the grooves and ungrooved surfaces being reversely disposed at lalternate joints to permitn a zig-zag folding of the panels.

4. A plaster-board comprising separate plaster board panels, there being a covering so of exible material on. both faces hingedly connecting the said panels, adjacent panels being foldable on their said hingedconnection through angles to lieclose together' or to 'dispose the panels' into various angular posi- 85 tions.

- 5. A' wall having thereina vplaster-board', composed of a series ofrsepa'rate 'plasterboard panels hingedly )connected together",

and disposed at angles to each other 'inzig- 9o zag form, Vpresenting depressionsfat alter-A nately'- opposite sides between'v the salient;

jacent angularly disposed panels, means enf gaging adjacent panels near the joints and retaining the panels at a given angle to each' 10.' other, and plaster-material filling saiddepressions of the board. l

- lin testimony whereof l have signed my bname'to this specification in the presence of two subscribing witnesses.

. JS WALSH. Witnesses:

Jann. S. SMITH, A. H. ST. JOHN. 

